Describe the cross-section that results from the intersection of a plane and a right rectangular prism as described in each statement. a. A plane intersects exactly three vertices of a cube.

b. A plane intersects two opposite vertices of the base of a cube, but is not perpendicular to the base. The plane intersects two edges of the other base of the cube.
c. A plane intersects a right rectangular prism parallel to its rectangular base.

d. A plane intersects two opposite vertices of the base, but is not parallel to the base. The plane does not intersect the other base.